Vol. 15—1961 - NorthEastern Weed Science Society

316.
planted
control
before these heavy
of q ua e kg rn as •.
rains, gave nearly 100 per cont
J.l:trazine was more
the ~ ame rates. So~e of
wha.t better than fenac.
effective than
fenacder1vatives
simazine
appear
when
to
applied at
be some­
Atrazlne applied after plowing, both pre-emergence end
post-emergence to quackgrass reduced the quackgrass slightly
but was not very effective.
Plowing, preparing, seedbed, and planting the same day,
coupled with good cultivatlonis very essential with nearly
all chemicals for goodquackgrass control.